Improvement in carriage-seat joints



NO. 121,362. Patented Nov- 28,1871.

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Improvement in Carriage S'e-a't Joints.

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UNITED STATES PATENT QFFICE.

JOHN A. HANNA, OF BEL AIR, MARYLAND.

IMPROVEMENT IN CARRIAGE-SEAT JOINTS.

Specification forming part of Letters Patent No. 121,362, dated November 28, 1871.

' the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and use the same, reference being had to the accompanying drawing forming part of this specification.

This invention consists in the peculiar mode of constructing those parts which make up the joint of a folding carriage-seat, with a view to produce a smooth surface when unfolded and greater degree of resistance to strain, and in a cap to prevent or remove any part of a persons dress from the joint.

Figure 1 represents a face view of the joint as it appears when unfolded and ready for use. Fig. 2 is a side view of the parts of the joint when separated. Figs. 3 and 4 are views of the cap.

A represents the male part of the joint, pro vided with a tenon, a, rounded at b, as shown in Fig. 2, and perforated at c. B is the female part of the joint, perforated at d, and having a mortise, e, which is open in front and at the end. 0 is a fulcrum-pin, which enters the perforations c (1. Each of the parts A B is extended some distance beyond a vertical plane passing through the fulcrum so as to afford stout swells or extensions f g, whose end faces are perfect planes and completely coincide. This latter forms a large bearing surface back of the fulcrum-pin, and precludes the possibility of the shoulders being staved up. By this construction it will be readily perceived that marked advantages accrue. Not only is any knobby surface in front avoided, but the shape of the back and the large bearing surface of the two parts behind the fulcrum insure strength and durability to the joint. D represents the cap, formed of a rubber tube, having the projecting flapE. The tube D is placed around one of the parts A B so as to bring the flap E over the joint. As the jointed part turns on the pivot-pin O the flap yields and offers no interruption thereto. While closed the flap prevents any part of the dress of parties riding from getting into the interstice, and, if such an accident happens while the parts A B are open, it

effectually pushes the dress out in advance of the closing parts.

I wish to be understood as laying no claim to joints for carriage-seats which are formed by use of an oval or rounded link or connecting piece inserted in slots formed in contiguous ends of the pieces jointed together, since my invention pertains to a construction adapted to avoid the weakness, lessen the cost, and increase the durability of such joints.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-- l. The improved carriage-seat joint formed of the movable part A having the tongue a, and the fixed part B provided with recess 0 for reception of the tongue, both said parts having abutting shoulders on the sides and back, as shown and described, for the purpose specified.

2. The rubber tube D having the projecting flap E, applied to the seat-joint of a vehicle, as and for the purpose described.

To the above specification of my invention I have signed my hand this 10th day of October, A. D. 1871.

JOHN A. HANNA.

Witnesses SoLoN O. KEMON,

THOS. D. D. OURAND. (31) 

